Well he has surpassed 50+ receptions the last 2 years. His 'big' year was 2 years ago when he really connected with Penny and went for 55rec, 613yds and 2TDs in only 11 games. Last year he, along with all of the passing game, put on the back burner to begin the season because of the wildcat being used so much, but after injuries to Ronnie Brown and Pat White the passing game was again depended on, thus why the whole Phin's passing offense got a boost.
Camarillo himself wasn't a highly touted WR, but after his return from a torn ACL in 2008 he has rebounded well. Why I say he is a possession WR is because he isn't a vertical threat like Rice and doesn't have the speed of Harvin, not to mention he didn't drop a single ball last year. I was actually really surprised to see Miami had traded him, simply because he is such a dependable receiver (not only great hands, but watching a ton of games hes not scared to stick his neck out to make a catch), but after the acquisition of Marshall in the off-season one of Hartline and Camarillo became expendable because they are essentially the same type of WR. Reason Hartline stayed, in my eyes, is because he is a bit quicker and a Miami invested a bit more in Brian.
Btw, another ESPN screw up, was looking at Miami's depth chart, and apparently Brian Hartline (6'2", 186lbs) turned into Andrew Hartline (an OT, standing 6'5" and weighing 300lbs). Gotta love ESPN sometimes